Geissele Automatics115648336
Geissele Automatics Super Modular Rail MK14 13.50" M-LOK Black Aluminum for AR Platform with Barrel Nut - 05573B$276.58 – $306.25
Availability: In Stock
The Geissele Automatics Super Modular Rail MK14 9.30" M-LOK handguard is a precision AR-15 rail system built for shooters who demand real estate for accessories without sacrificing a slim, ergonomic profile. Whether you're running rail covers, vertical grips, and a thumb-over-bore grip, or mounting optics and lights for duty or competition, the MK14 delivers the modularity serious AR builders expect from Geissele's combat-proven design. It ships with Geissele's proprietary free-float barrel nut—engineered to anchor your barrel straight and rigid for accuracy—and is machined from 6061 T6 aluminum with Type III hardcoat anodizing for durability in the field.
The MK14's layout prioritizes both function and mounting flexibility. A continuous Picatinny rail runs the full length of the top for your primary optic or backup sights, while M-LOK slots line the 3, 6, and 9 o'clock positions along the handguard's length, so you can position accessories exactly where you need them. Geissele also engineered QD pushbutton sling swivel sockets at the 1 and 11 o'clock positions at the rear—a thoughtful touch that keeps your setup clean and sling-ready without jury-rigging attachment points.
The slim cross-section is no accident. Geissele designed the MK14 to complement modern support-hand technique: the narrower profile lets shooters run their thumb naturally over the bore while keeping plenty of room for grip furniture and hand position. The 2.25" barrel nut provides substantial surface area for a secure, repeatable fit that won't shift zero during heavy use. Available in matte black, this is a no-frills, purpose-built rail for hunters, precision rifle competitors, and tactical shooters who value accuracy and accessibility over aesthetics.
| Length | 9.30" |
| Mounting System | M-LOK (3, 6, 9 o'clock) + Full-Length Picatinny (top) |
| Material | 6061 T6 Aluminum |
| Finish | Type III Hardcoat Anodize, Matte Black |
| Barrel Nut Length | 2.25" |
| Barrel Nut Type | Proprietary Free-Float (included) |
| Platform Compatibility | AR-15 |
| Sling Attachment | QD Pushbutton Sockets (1 and 11 o'clock, rear) |
The MK14 ships with Geissele's proprietary free-float barrel nut. A barrel nut wrench is not included with current production units, and a gas block is not included.
Yes, the MK14 is designed for AR-15 platform rifles and uses Geissele's proprietary barrel nut for installation. You'll need to be comfortable with, or have assistance with, barrel nut installation and torque specifications.
Absolutely. The slim cross-section of the MK14 was engineered specifically for shooters who pair vertical grips and rail covers with a thumb-over-bore support-hand grasp. The M-LOK slots run the full length at 3, 6, and 9 o'clock, giving you plenty of options for mounting furniture and accessories.
Yes. The handguard includes QD pushbutton sling swivel sockets at the 1 and 11 o'clock positions at the rear, so you can attach standard QD sling hardware without additional adapters.
SKU: 115648144 • Width: 4.5in • Height: 4.5in • Depth: 13in • Weight: 1.44oz
Availability: In Stock
The Geissele Automatics Super Modular Rail MK14 9.30" M-LOK handguard is a precision AR-15 rail system built for shooters who demand real estate for accessories without sacrificing a slim, ergonomic profile. Whether you're running rail covers, vertical grips, and a thumb-over-bore grip, or mounting optics and lights for duty or competition, the MK14 delivers the modularity serious AR builders expect from Geissele's combat-proven design. It ships with Geissele's proprietary free-float barrel nut—engineered to anchor your barrel straight and rigid for accuracy—and is machined from 6061 T6 aluminum with Type III hardcoat anodizing for durability in the field.
The MK14's layout prioritizes both function and mounting flexibility. A continuous Picatinny rail runs the full length of the top for your primary optic or backup sights, while M-LOK slots line the 3, 6, and 9 o'clock positions along the handguard's length, so you can position accessories exactly where you need them. Geissele also engineered QD pushbutton sling swivel sockets at the 1 and 11 o'clock positions at the rear—a thoughtful touch that keeps your setup clean and sling-ready without jury-rigging attachment points.
The slim cross-section is no accident. Geissele designed the MK14 to complement modern support-hand technique: the narrower profile lets shooters run their thumb naturally over the bore while keeping plenty of room for grip furniture and hand position. The 2.25" barrel nut provides substantial surface area for a secure, repeatable fit that won't shift zero during heavy use. Available in matte black, this is a no-frills, purpose-built rail for hunters, precision rifle competitors, and tactical shooters who value accuracy and accessibility over aesthetics.
| Length | 9.30" |
| Mounting System | M-LOK (3, 6, 9 o'clock) + Full-Length Picatinny (top) |
| Material | 6061 T6 Aluminum |
| Finish | Type III Hardcoat Anodize, Matte Black |
| Barrel Nut Length | 2.25" |
| Barrel Nut Type | Proprietary Free-Float (included) |
| Platform Compatibility | AR-15 |
| Sling Attachment | QD Pushbutton Sockets (1 and 11 o'clock, rear) |
The MK14 ships with Geissele's proprietary free-float barrel nut. A barrel nut wrench is not included with current production units, and a gas block is not included.
Yes, the MK14 is designed for AR-15 platform rifles and uses Geissele's proprietary barrel nut for installation. You'll need to be comfortable with, or have assistance with, barrel nut installation and torque specifications.
Absolutely. The slim cross-section of the MK14 was engineered specifically for shooters who pair vertical grips and rail covers with a thumb-over-bore support-hand grasp. The M-LOK slots run the full length at 3, 6, and 9 o'clock, giving you plenty of options for mounting furniture and accessories.
Yes. The handguard includes QD pushbutton sling swivel sockets at the 1 and 11 o'clock positions at the rear, so you can attach standard QD sling hardware without additional adapters.
SKU: 115648144 • Width: 4.5in • Height: 4.5in • Depth: 13in • Weight: 1.44oz